Antique Longines Watch Movement and Dial. I doubt the case is original to the watch. Longines Cal. 10.85N Fifteen Jewels - 3 Adjustments. Serial #3073166 dates it to 1913-1914. It is marked by the original jewelry firm that retailed it, "Shreve Treat & Eacret, San Francisco." For Parts or Repair. Balance staff is good, balance rotates freely, pallet fork nudges the escape wheel, but the escape wheel doesn't turn.